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WorksheetsFractional Distillation
Total questions: 10
Worksheet time: 5mins
What physical property is used to determine what component will separate out during the process of fractional distillation?
density
melting point
boiling point
sample volume
Which one of the following components of fractional distillation holds the vapours that cool and condense?
Cork
Thermometer
Distillation flask
Fractionating column
Which of the following best defines fractional distillation?
Using the boiling point as a guide when mixing one sample with another.
Separating components from a mixture using heat.
Purifying a sample that is contaminated with minerals.
Separating miscible liquids referring to boiling points with heat.
What must be the difference of boiling points of 2 miscible liquids to undergo fractional distillation?
373 K
25 K
25 C
253 K
In fractional distillation of petroleum, the liquids having higher boiling points accumulate at the lower level in the fractionating column.
True
False
Where do the longest hydrocarbon molecules condense?
At the top of the tower
At the bottom of the tower
They do not condense at all and remain a gas
Shown in the following diagram is the laboratory apparatus for fractional distillation. Which letter correctly identifies the fractionating column?
A
B
C
D
To perform fractional distillation of air, it must be liquefied and then purified to remove
dust
molecule
atom
rust
Nitrogen is obtained from the fractional distillation of liquefied air at about
-196°C
-186°C
-176°C
-166°C
Which of the following is not separated through distillation process?
Acetone and Water
Aniline and chloroform
Impurities in Sea Water
Milk and Water
